Add support for running Entrance Client under Wayland

[wltjr]

Need to modify entrance client to support running under Wayland or X.

[wltjr]

This is going to entail using some sort of minimal/mini Wayland compositor library, and/or doing it directly worse case.

[wltjr]

@OxusByte45 on this issue, if we want to have entrance_client running under Wayland, we need to basically have a entrance_wserver or entrance_wayland_server or something like the entrance_xserver. I believe most all X11 code is in entrance_xserver, so that would be the place to conditionally use Wayland. Need to locate a minimal compositor to use, as we would need to depend on some compositor, as there is not one in EFL, and if we use E or other, we might as well make the desktop a DM just as others.

I have no clue how Wayland launching other Wayland sessions would work, if at all, and likely would not be seamless, one would have to stop/shutdown before the other, and likely blank screen flash terminal, etc. It won't be pretty like X11...

Wayland IMHO is a half-baked concept and switching from central shared code to a protocol all duplicate is monumentally stupid, have everyone duplicating efforts, break shit when protocol changes. I am all for choice and diversity, but idk if Wayland is that, and the DM to Desktop transition seems like you have to remain in the SAME Wayland compositor the whole time. Anyway this issue is opened for running Entrance or really entrance_client under Wayland.